v2.4.0.6
STOCK-BASED COMPENSATION PLANS (Details 2) (Non Vested Stock Options [Member], USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Non Vested Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares, Outstanding at beginning of year 558,929 485,978 421,226
Number of Options, Granted 333,300 253,400 235,700
Number of Options, Vested (207,044) (173,824) (145,298)
Number of Options, Forfeited (5,400) (6,625) (25,650)
Shares, Outstanding at end of year 679,785 558,929 485,978
Weighted Average Exercise Price, Outstanding at beginning of year $ 23.86 $ 24.46 $ 25.16
Weighted Average Exercise Price, Granted $ 28.50 $ 23.53 $ 24.21
Weighted Average Exercise Price, Vested $ 23.83 $ 25.05 $ 25.86
Weighted Average Exercise Price, Forfeited $ 23.95 $ 24.26 $ 25.62
Weighted Average Exercise Price, Outstanding at end of year $ 26.14 $ 23.86 $ 24.46
Weighted Average Fair Value, Outstanding at beginning of year $ 4.23 $ 4.70 $ 4.94
Weighted Average Fair Value, Granted $ 2.77 $ 3.68 $ 4.51
Weighted Average Fair Value, Vested $ 4.42 $ 4.73 $ 5.05
Weighted Average Fair Value, Forfeited $ 4.28 $ 4.60 $ 4.91
Weighted Average Fair Value, Outstanding at end of the year $ 3.46 $ 4.23 $ 4.70